A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 7035-00-104-7613
NSN 5985-01-196-6144
NSN 6610-00-225-1076
NSN 6685-01-556-4246
NSN 7035-01-143-3573
NSN 5920-01-418-1821
NSN 5996-00-054-7287
NSN 6135-01-319-0623
NSN 5925-01-445-5583
NSN 5905-01-378-0006
NSN 5998-00-006-5378
NSN 6110-00-844-6230